<?php
/**
 * Smarty Internal Plugin Compile While
 *
 * Compiles the {while} tag
 *
 * @package Smarty
 * @subpackage Compiler
 * @author Uwe Tews
 */

/**
 * Smarty Internal Plugin Compile While Class
 *
 * @package Smarty
 * @subpackage Compiler
 */
class Smarty_Internal_Compile_While extends Smarty_Internal_CompileBase {
	
	/**
	 * Compiles code for the {while} tag
	 *
	 * @param $args array
	 *       	 array with attributes from parser
	 * @param $compiler object
	 *       	 compiler object
	 * @param $parameter array
	 *       	 array with compilation parameter
	 * @return string compiled code
	 */
	public function compile($args, $compiler, $parameter) {
		// check and get attributes
		$_attr = $this->getAttributes ( $compiler, $args );
		$this->openTag ( $compiler, 'while', $compiler->nocache );
		
		if (! array_key_exists ( "if condition", $parameter )) {
			$compiler->trigger_template_error ( "missing while condition", $compiler->lex->taglineno );
		}
		
		// maybe nocache because of nocache variables
		$compiler->nocache = $compiler->nocache | $compiler->tag_nocache;
		if (is_array ( $parameter ['if condition'] )) {
			if ($compiler->nocache) {
				$_nocache = ',true';
				// create nocache var to make it know for further compiling
				if (is_array ( $parameter ['if condition'] ['var'] )) {
					$compiler->template->tpl_vars [trim ( $parameter ['if condition'] ['var'] ['var'], "'" )] = new Smarty_variable ( null, true );
				} else {
					$compiler->template->tpl_vars [trim ( $parameter ['if condition'] ['var'], "'" )] = new Smarty_variable ( null, true );
				}
			} else {
				$_nocache = '';
			}
			if (is_array ( $parameter ['if condition'] ['var'] )) {
				$_output = "<?php if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] ['var'] . "]) || !is_array(\$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] ['var'] . "]->value)) \$_smarty_tpl->createLocalArrayVariable(" . $parameter ['if condition'] ['var'] ['var'] . "$_nocache);\n";
				$_output .= "while (\$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] ['var'] . "]->value" . $parameter ['if condition'] ['var'] ['smarty_internal_index'] . " = " . $parameter ['if condition'] ['value'] . "){?>";
			} else {
				$_output = "<?php if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] . "])) \$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] . "] = new Smarty_Variable(null{$_nocache});";
				$_output .= "while (\$_smarty_tpl->tpl_vars[" . $parameter ['if condition'] ['var'] . "]->value = " . $parameter ['if condition'] ['value'] . "){?>";
			}
			return $_output;
		} else {
			return "<?php while ({$parameter['if condition']}){?>";
		}
	}

}

/**
 * Smarty Internal Plugin Compile Whileclose Class
 *
 * @package Smarty
 * @subpackage Compiler
 */
class Smarty_Internal_Compile_Whileclose extends Smarty_Internal_CompileBase {
	
	/**
	 * Compiles code for the {/while} tag
	 *
	 * @param $args array
	 *       	 array with attributes from parser
	 * @param $compiler object
	 *       	 compiler object
	 * @return string compiled code
	 */
	public function compile($args, $compiler) {
		// must endblock be nocache?
		if ($compiler->nocache) {
			$compiler->tag_nocache = true;
		}
		$compiler->nocache = $this->closeTag ( $compiler, array ('while' ) );
		return "<?php }?>";
	}

}

?>